ML19273B832
| ML19273B832 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 05/22/1979 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Weigand D GULF STATES UTILITIES CO. |
| References | |
| NUDOCS 7906180241 | |
| Download: ML19273B832 (1) | |
Text
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'o UNITED STATES Ej I,j NUCLEAR REGULATORY COMMISSION
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j REGION IV 0,
c 611 RYAN PLAZA DRIVE, SUITE 1000
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ARLINGTON, TEXAS 76012
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May 22,1979 Docket No. 50-458 50-459 Gulf States Utilities ATTN: Dr. D. G. Weigand, General Manager Nuclear Projects Post Office Box 2951 Beacmont, Texas 77704 Gentlemen:
Enclosed is supplement A0 to Preliminary Notification PNO-79-67, " Nuclear Incident at Three Mile Island," dated May 21, 1979.
Should you have any questions regarding this review, please contact this office.
Sincerely, nh, '
A &<_
Seiiq, Chief W'. t,,
Reactor CoMtruction and Engineering Support Branch
Enclosure:
PNO-79-67A0 7906180241
ItefEDIATE PRELIMINARY NOTIFICATION May 21, 1979 PRELIMINARY NOTIFICATION OF EVENT OR UhTSUAL OCCURRENCE -- PNO-79-67A0 This preliminary notification constitutes summary informaticn of an event of safety or public interest significance.
Tb,, inform _ation presented is a 7
surnary of information as of 7:00 a.m. on May 21, 1979.
Facility: Three Mile' Island Unit 2 Middleteen, Pennsylvania (DN 50-320)
's
Subject:
NUCLEAR INCIDENT AT THREE MILE ISLAND
- q Plant Status
.. - _.'s Operational:
c 1.
The average coolant temperature is being maintained at 170 degrees F by natural circulation.
Pressure is about 300 psi.
Steam is being admitted to the main condenser through the turbine bypass valves from the A Steam Generator. The highest incore temperature reading is 301 degrees F.
2.
Hydrostatic testing of the existing decay heat removal system "B" loop has been performed satisf actorily.
Leaks have been identified and are
~
being corrected in the "A" loop.
3.
The pressurizer has been taken " solid" periodically to obtain confirmatory information on pressurizer level and to check primary system leak rate.
4.
Ihc water level in the reactor building was measured and found to be 6.l' above floor level.
This is about 450,000 gallens.
'a 5.
Ote of two primary system pressure indications now in use is giving erratic readings. Direct reading pressure gages can be connected to the system if needed.
Environmental Ststus Environmental radiation levels continue to be consistent with natural background levels. Approximately six minor releases have occurred during the past week (May 14-20) in conjunction with changing levels in the primary make-up tank and sampling the primary system.
Aerial and ground surveys taken during these releases indicated no radiation Icvels above background, except for a release at 1300 on May 16, when an aerial measurement above the stack read 0.05 mR/hr.
No radiation was detected on the ground.
During the period May 14-20, approxi-mately 36 air samples were collected and all were less than MDA.
Vegetation -
and milk samples collected during this period also showed no activity above MDA. ' EPA and FDA air, water milk and food saeples collected during this past week up to May 19 showed no detectable activity from TMI.
rannrmo ne ra w
@MNDIN U LC cost m ED 7906060181 hPe
.)E Continued May 21,1979 Page 2:
PNO-79-67AO s
Contact:
RCPaulus, IE x27246 DThompson, IE x28487
- Distribution
Transmitted H St it*04
' Chairman Hendrie Comissioner Bradford S. J. Chilk, SECY Comissioner Kennedy Comissioner Ahearne C. C. Kan:nerer, CA Commissioner Gilinsky ACES (For Distribution)
Transmitted: HNBB P. Bldg n'.co J. G. Davisi IE L. V. Gossick, EDO H. R. Denton, NRR Region I IT't4 h.*tf H. L. Ornstein, EDO R. C. DeYeung, NRR Region II ff
- In J. J. Fouchard, PA R. J. Hattson, NRR Region III lt'. M N. M. Haller, MPA V. Stello, NRR Region IV #2tto R. G. Ryan, OSP R. S. Boyd, NRR Region V J ?!on H. K. Shapar, ELD SS Bldg (MAIL)
W. J. Dircks, NMSS J. J5 Cumings, OIA S. Levine, RES R. Hinogue, SD IE (TMI) Sita (Pauv'de supy Lu STATE)
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vudalatsu - ini-intormation Center)
White House Situation Rocci
_FD b (Provide conies to t.he Adminimerzene and rh. nn.r=rinn. r,nr.r)
DCPA HEW u.w..., c.,m > +
IMMEDIATE PRELIMINARY NOTIFICATION 0
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